Question

Find the distance between the points given. (-1, -1) and (1, 3)

Answer 1

(2,4) it takes 2 from -1 to 1 and 4 from -1 to 3

Answer 2

Given two points $A = (A_x, A_y)$ and $B = (B_x, B_y)$, you can compute their distance using the Pythagorean theorem: you have

$AB = \sqrt{(A_x-B_x)^2 + (A_y - B_y)^2}$

In your case, you have

$AB = \sqrt{(-1-1)^2 + (-1-3)^2} = \sqrt{(-2)^2+(-4)^2} = \sqrt{4+16} = \sqrt{20} = 2\sqrt{5}$